-LRB- CNN -RRB- -- Two hijackers who took over a plane flying from Sudan 's Darfur region on Tuesday and diverted it to Libya surrendered to authorities Wednesday , Libyan state media said .

The hijacked plane took off from near the Darfur refugee camp of Kalma , which was attacked earlier in the week .

The official news agency JANA said the two hijackers surrendered to Libyan authorities in the eastern town of Kufra , where the plane landed , and they were being detained in a hall in the airport there . Their identities were not released .

Earlier , the hijackers had released all 87 passengers aboard the plane , but had held on to six crew members while they negotiated with Libyan officials through the pilot about passage to France , JANA said .

Libyan officials tried to persuade the hostage-takers to surrender as the hijackers demanded fuel to fly the plane to Paris , France .

No details were provided as to how the two surrendered . All of the remaining hostages were freed , and JANA said 20 Sudanese officials were en route to the airport .

Libya will send a plane to return the passengers and crew to Khartoum , Sudan , the plane 's original destination , JANA said .

The Sun Air Boeing 737 airliner was about 10 minutes into a flight from Niyala , Sudan , to Khartoum on Tuesday when the pilot called the control tower and told officials the plane had been hijacked and was heading to Kufra , Sun Air airlines official Murtada Hassan Jumaa told the Al-Arabiya news channel .

The hijackers at first wanted to land the plane in Egypt , but the Egyptian government refused them permission , John Ukec , Sudan 's ambassador to the United States , said Tuesday .

Khaled Deeb , an Al-Jazeera reporter in Tripoli , Libya , said Libyan authorities allowed the plane to land only because the hijackers said they were low on fuel -- `` for humanitarian reasons and nothing else . ''

`` The fact that the plane was kidnapped from Darfur indicates that one of the militant groups may have prepared for this operation , and the fact that they want to go to France adds more to that theory , '' Deeb said Tuesday . `` The hijackers do n't have any clear demands except for fuel and then heading to France . ''

-- CNN 's Mustafa Al-Arab contributed to this report

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NEW : Two hijackers surrender to Libyan authorities

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Hijackers earlier released passengers but had kept crew as hostages

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Sudan plane hijacked shortly after taking off from Darfur region for Khartoum

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Hijackers reportedly wanted fuel to fly to France ; no other demands known